<template>
    <div id="app-container">
    讲师列表
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="teacherQuery.name" placeholder="讲师名"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="teacherQuery.level" clearable placeholder="讲师头衔">
          <el-option :value="1" label="高级讲师"/>
          <el-option :value="2" label="首席讲师"/>
        </el-select>
      </el-form-item>

      <el-form-item label="添加时间">
        <el-date-picker
          v-model="teacherQuery.begin"
          type="datetime"
          placeholder="选择开始时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>
      <el-form-item>
        <el-date-picker
          v-model="teacherQuery.end"
          type="datetime"
          placeholder="选择截止时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="getList()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table
      :data="list"
      border
      fit
      highlight-current-row>

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="name" label="名称" width="80" />

      <el-table-column label="头衔" width="80">
        <template slot-scope="scope">
          {{ scope.row.level===1?'高级讲师':'首席讲师' }}
        </template>
      </el-table-column>

      <el-table-column prop="intro" label="资历" />

      <el-table-column prop="gmtCreate" label="添加时间" width="160"/>

      <el-table-column prop="sort" label="排序" width="60" />

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/teacher/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">修改</el-button>
          </router-link>
          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

  <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="getList"
    />
    </div>
</template>

<script>
    import teacher from '@/api/edu/teacher'

    export default {
        data() {    //定义变量和初始值：一般是传递给后端的变量或者接收后端数据的变量
            return {
                //当前页
                page: 1,
                //每页记录数
                limit: 10,
                //查询条件对象，在js中是可以不需要写属性的，我们在调用时，他会自动添加，比如设置teacherQuery.name时，他会自动添加name属性
                teacherQuery: {},
                //总记录数
                total: 0,
                //讲师列表数据
                list: null
            }
        },
        created() {  //调用methods里的方法
            this.getList()
        },

        methods: {  //定义具体的方法，方法内部一般是调用前端提供的调用后端的接口的方法，即api中的方法
            getList(page =1){
                this.page = page
                //调用接口
                teacher.getTeacherListPage(this.page,this.limit,this.teacherQuery)
                .then(response => {
                    console.log(response)
                    this.list = response.data.records
                    this.total = response.data.total
                })
                .catch(error => {
                    console.log(error)
                })
            },
            //清空
            resetData(){
              //清空条件输入框
              this.teacherQuery = {}
              //查询所有讲师
              this.getList()
            },
            //删除讲师记录
            removeDataById(id){
              //提示是否删除
               this.$confirm('此操作将永久删除讲师记录, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
              }).then(() => {  //点击确定，执行then方法
                //调用删除的方法
                teacher.removeTeacherById(id)
                    .then(response =>{//删除成功
                    //提示信息
                    this.$message({
                        type: 'success',
                        message: '删除成功!'
                    });
                    //回到列表页面
                    this.getList()
                    })
              })
            }
        }
    }
</script>